Windmill wheel



July 10, 1923.

N. A. ROMAN WINDMILL WHEEL Filed April- 13 1922 Patented July 10, 1923.

atria earner article.

NEWMAN A. ROMAN, OF-DEER TRAIL, COLOR/[5.130. .ASSIGNOR ONE-FOURTH TO LES- LIE J'. MQKAY AND ONE-FOURTH TU HAZE/RY .i-I SS, 01f DEER TRAIL, COLO- nano.

W-INIDMILL WHEEL.

=' Application filed April 13, 1922 Serial No. 552,174.

T0cZZw/wmit may concern."

Be 1t known that I, NEWMAN A. ROMAN,

a citizen of the llnited States of America,-

residing at Deer Trail, county of Arapahoe, and State of Colorado, have invented certain new and useful Improvements in Wind mill Wheels; and I do declare the following to be a full, clear, and exact description of the invention, such as will enablecthers skilled in the art to. whichitappertains to make and use the same, reference being'had to the accompanying dra-wings1, and to the characters of reference marked thereon,

which form part of this specification.

3 This invention relates to windmills and has reference. to a windmill. wheel which is provided with means whereby it will main tain substantially constant speed in air cur.

rents of different velocities.

. It is well known and understood that in order to obtain practical results from a windmill in all wind velocities, within. reasonable limits, it is necessary to provide the windmill with means that will automatically adjust the mill to the wind in such a manner that the speed thereof will tend to remain constant.

I am aware that many different expe clients have been resorted to for the purpose of governing the speedlof a. windmill. I shall, however, not attempt to explain any of themeans known tome, but proceedto describe my inventionand in order to do so more clearly. I shall have reference to the accompanying drawing in which:

Fig. 1 shows a side elevation of my im-' proved windmill wheel.

Fig. -2 is an elevation to an enlarged scale of a portion of the wheel and shows the manner in whichthe governor is attached thereto. p I

Fig. 3 is a section taken on line 83 Fig. 1,. and

Fig. 4 is a section taken on line 4-4 Fig. 2.

The same reference numerals will be used to indicate the same parts throughout the several views. 7 y

Numeral 1 represents the hub of my wheel to which is secured by suitable means 2 a ring 3 in which is pivotally mounted in a manner to be hereinafter described the inner ends of sails 4. The outer ends of said sails being pivotally mounted in an outer ring 5. Secured to the outer end of each sail L is a malleable iron casting 6 held in place by means of rivets 7. Each casting has a bolt 8 formed integral therewith. Secured to the inner ends of. sails 4 are castings?) which re similar to castings 6. Restingr againstthe outer surface of ring 5 is ball cup or raceway 10 and (re-operating therewith is a. similar ball cup 11 which has a threaded connection with bolt 'A metal cup 12 is placed over members 10 and 11 and serves to shield the same from dirt and rain. A nut- 13 serves to clamp cups l1 and 12 in place. A ball bearing similar to the one just described is provided for the inner end of sails 4t all as shown in Fig. 2.

.each, sail I secure two angles 15 between wh1ch the ring 143 is movably secured by means of a pin, not shown. By means of ring 14% secured to the sails 4 in the manner described I am able to rotate all of the sails by merely rotating ring; 14:. Springs 16 are secured at one end to ring 14 and at the other to a stationary portion of the wheel; these springs being under tension serve to hold the sails in such a. position that they make their greatest angle with the axis of the wheel.

If the velocity of thewind were always constant the angle of the sails could remain constant and the speed of rotationwould then always be constant for a given load, but since both the velocity of the air and the load vary it is necessary to change the angle of the sails'in order to obtain a reasonably constant speed of rotation. In order to auto matically govern the speed of rotation, I provide the following means.

Arectangular bar 17 has its inner end 18 secured to the hub 1 by means of a nut 19 and its outer end is fastened to ring 5 by means of a bracket 20 to the outer end of whichbar 17 is clamped by means of a nut 21. Secured to bar 17 a short distance beyond the outer circumference of ring 14 are a pair of brackets 22 between which a grooved pulley 23 is rotatably mounted. A ball 24 is slidingly mounted on bar 1.7 beyond the brackets 23 and is held in its in ward position by the action of a compression spring 25 which surrounds the bar 17 and has its inner end abutting against the ball while the outer end abuts the inner surface of the adjusting nut A cable 97 has one end secured to a suitable eyelet 2'8 and its otherend connected to an eyelet $29 on the ball Q l. lit will be readily appareiiit that when the Wheel rotates the centrifugal force will cause balls to more outwardly and compress spring AS the balls move out- Wardly the cable will pull the rin; lll; in a clockwise direction and rotate the sails .3: about their pivots in such a manner that tl'iey will make a small angle with the axis of the wheel. By means ot a nut 26 the tension of spring can be adjusted so that the force required to compress them and move the sails a. predetermined ainmint can be ehangred at will and in this manner the speed of the Wheel can be adjusted Although in the above description I have referred to one groi ernor only I intend to use one or more pairs and have illustrated two pairs which 1 ically altering the angle of the sails so as to secure substantially constant speed in breezes oi Varying velocities.

llaving now described my invention What ll claim as new is: I

A. windmill Wheel comprising a hub memler two annular members of different diameters concentric With the hub and surrounding' the same, a plurality of angularly spaced sails pivotally mounted between said annular members, aring pivotally connected at spaced points to one edge of each sail, a u? secured to said ring and to a stationy portion of the Wheel frame and adapted to normally hold the sails at a predetermined angle with respect to the plane of rotation, a pair of diametrically arrange-d bars, a

weight slidably secured to each arm, a spring 'sailsin accordance with the requirements of the load and the velocity of the Wind.

In testimony whereof I atliX my siqnature.

NEWMAN a. Roiiau. 

